Greguss's morphogenera of homoxylous fossil woods: a taxonomic and nomenclatural review

Philippe, Marc; Zijlstra, Gea; Barbacka, Mária

doi:10.2307/1223638

Cited by 22 publications

(21 citation statements)

References 6 publications

(3 reference statements)

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“…Although it is validly published the name Abietoxylon Houlbert is not commonly used. This is all the more surprising, since etymological naming still prevailed amongst palaeoxylologists long after 1910 (Philippe & al., 1999a). Whilst Abies wood is similar to that of Cedrus (Bailey, 1933) in gross anatomy several wood anatomists still use Cedroxylon Kraus to refer samples with an anatomy similar to that of modern Abies species (see, e.g., Greguss, 1967).…”

Section: Discussionmentioning

confidence: 99%

Houlbert's types for fossil wood: lectotypification and taxonomic reappraisal of Abietoxylon, Ambaroxylon and Taxoxylon

Philippe

Bamford

2009

TAXON

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In 1910 Houlbert validly published five names for wood morphogenera: Abietoxylon, Ambaroxylon, Cupressoxylon, Juniperoxylon and Taxoxylon. The material on which these five names were based has never been reviewed and was considered as lost. We located the repository of Houlbert's material, and had the opportunity to study original slides. However slides are lacking for two of these five morphogenera (Cupressoxylon, Juniperoxylon). We were able to determine which slides were used for the original illustrations for the remaining three genera and to choose lectotypes. Only short descriptiones generico-specifica were given by Houlbert for these names, without any details of characteristic features. Taxonomic reappraisal of the material on which the names are based provided evidence that their systematic relationships are dubious since sample preservation is poor and Houlbert misinterpreted some crystallographic features as features of the wood structure. We therefore advise against the use of the names Abietoxylon, Ambaroxylon and Taxoxylon. From our observations and the original descriptions Houlbert's type samples for Abietoxylon, Cupressoxylon, Juniperoxylon and Taxoxylon very probably belong to a single morphogenus.

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Section: Discussionmentioning

confidence: 99%

Houlbert's types for fossil wood: lectotypification and taxonomic reappraisal of Abietoxylon, Ambaroxylon and Taxoxylon

Philippe

Bamford

2009

TAXON

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“…N o t e s . These re-discovered slides can be considered as the holotype of Laricioxylon nogradense, which is the type species of the fossil genus Laricioxylon (for discussion see Philippe et al 1999). The tangential longitudinal section, however, is missing.…”

Section: Methodsmentioning

confidence: 99%

“…The thin slides are extremely problematic with small very dark organic fragments. Moreover, as stated by Philippe et al (1999), Callitroxylon GreGuss "… is not associated with any species name, and thus is not validly published". According to Farr and Zijlstra (Index Nominum Genericorum (Plantarum) -http://botany.si.edu/ ing/; checked on February 13, 2018), validly published is Callitroxylon HartiG, 1848.…”

Section: Methodsmentioning

confidence: 99%

Reappraisal of Greguss’ Fossil Wood Types and Figured Specimens from the Cenozoic of Hungary: Overview, Corrected Geology and Systematical Notes

Sakala¹,

Selmeczi²,

Hably³

2018

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Abstract Prof. Pál Greguss (*1889, †1984) was a leading figure in European (palaeo)xylotomy. His collection of types and figured specimens from the Cenozoic of Hungary published in the two monographs (Fossil gymnosperm woods in Hungary from the Permian to the Pliocene and Tertiary angiosperm woods in Hungary), now stored in the Palaeobotanical Collection of the Botanical Department in the Hungarian Natural History Museum in Budapest, is of great value. Many types were considered lost, but the present reappraisal, conducted by the first author during several visits to Budapest between 2009 and 2016, uncovered 18 types, 35 figured specimens and 1 additional specimen, 54 items in total. In the text, all specimens are briefly presented with their systematical attribution, information on their numbers, localities and their corrected geological age. The text is completed by two photo-plates and one summary table.

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“…Philippe et al (2004) revised the Gondwana Mesozoic Dadoxylon woods into Brachyoxylon and Agathoxylon. The validity of some Mesozoic species of Dadoxylon both in Euroamerican flora and Gondwana flora is in doubt (Philippe, 1993(Philippe, , 1995Philippe et al, 1999).…”

Section: Taxonomic Consideration and Paleoenvironmental Significancementioning

confidence: 99%

Zalesskioxylon xiaheyanense sp. nov., a gymnospermous wood of the Stephanian (Late Pennsylvanian) from Ningxia, northwestern China

Feng

Wang

Guanglong

2008

Journal of Asian Earth Sciences

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Greguss's morphogenera of homoxylous fossil woods: a taxonomic and nomenclatural review

Cited by 22 publications

References 6 publications

Houlbert's types for fossil wood: lectotypification and taxonomic reappraisal of Abietoxylon, Ambaroxylon and Taxoxylon

Houlbert's types for fossil wood: lectotypification and taxonomic reappraisal of Abietoxylon, Ambaroxylon and Taxoxylon

Reappraisal of Greguss’ Fossil Wood Types and Figured Specimens from the Cenozoic of Hungary: Overview, Corrected Geology and Systematical Notes

Zalesskioxylon xiaheyanense sp. nov., a gymnospermous wood of the Stephanian (Late Pennsylvanian) from Ningxia, northwestern China

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